fz_pixmap* pix = fz_new_pixmap_with_rect(ctx, fz_device_gray, bbox); fz_clear_pixmap_with_color(pix,255); fz_device* dev = fz_new_draw_device(ctx, cache, pix); pdf_run_page(xref, page, dev, ctm); fz_free_device(dev);intw = pix->w;inth = pix->h;QImageimage(w, h, ...
The QImage class provides a hardware-independent pixmap representation with direct access to the pixel data. More... #include <qimage.h>…
6. 图像处理与多媒体:BOSS直聘学习QT的图像处理和多媒体编程,包括QPixmap、QImage等图像处理类,以及QMediaPlayer、QSound等多媒体类,了解如何使用这些工具进行图像处理和多媒体播放。 7. 自定义直聘控件与插件:学习QT的自定义控件和插件开发,包括QCustomWidget、QPlugin等控件和插件类,了解如何使用这些工具进行自定义控...
fz_pixmap* pix = fz_new_pixmap_with_rect(ctx, fz_device_gray, bbox); fz_clear_pixmap_with_color(pix,255); fz_device* dev = fz_new_draw_device(ctx, cache, pix); pdf_run_page(xref, page, dev, ctm); fz_free_device(dev);intw = pix->w;inth = pix->h;QImageimage(w, h, ...